Jeremy test drives the Koenigsegg CXX – and Stig takes it round the Top Gear track. Speed racing automobiles take to the road in this exciting free clip from BBC Worldwide.
Jeremy Clarkson challenges the Ariel Atom to prove more fun than a motorbike – with astounding results. The speed is unlike any car or motorcycle on the road today, Top Gear investigates! Watch more Top Gear from BBC Worldwide here: www.youtube.com